Rembrandt

"Try to put well in practice what you already know; and in doing so you will in good time, discover  the hidden things which you now inquire about. Practice what you know, and it will help make clear what now you do not know." - Rembrandt.

Rembrandt decided not to follow the advice that was given to young painters, which was to travel to Italy to learn  Italian art . Rembrandt had felt that he would learn everything from the art of his own country. 

Self Portrait at the Age of 63. 1669.

In Rembrandt's paintings there is a similarity between them all in the lighting set up. It is quite a warm light.